Hexaconazole ((-)-Hexaconazol) is a broad-spectrum triazole fungicide that inhibits ergosterol biosynthesis via inhibition of the cytochrome P450-dependent 14α-demethylation of lanosterol, which results in disruption of the fungal cell membrane and cell death.

Hexaconazole在浓度依赖的方式下对黄瓜植物上的白粉病菌B. graminis和S. cucurbitae具有杀菌作用，且在6.7 mg/L的浓度下对大麦植物上的白粉病具有治疗效果[1]。此外，它还能抑制R. bataticola和S. rolfsii的生长（ED50s分别为6.35和1.27 mg/L）[2]。

The medium was poured into a set of two petriplates under aseptic conditions in a laminar flow hood.?When the medium in the plates was solidified, a mycelial disc of 0.5 cm diameter of freshly grown test fungi taken from periphery was inoculated upside down at the center of the plates.?These treated petri dishes were incubated at 28℃ until fungal growth in the control plates was almost complete.?Hexaconazole used as commercial fungicide and acetone served as control.?All the compounds were tested in triplicates.?The mycelia growth of fungi (mm) in both treated (T) and control (C) petri plates was measured diametrically in three different directions and growth inhibition (I) and corrected inhibition (IC) were calculated by using Abbott s formula[2]